Revetment block



FIG. 1 is a top perspective view of the “revetment block” showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side elevation view thereof, the left side view being a mirror image of that shown;

FIG. 4 is a front elevation view thereof, the rear view being a mirror image of that shown; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for the “revetment block,” as shown and described. 